маска фабрика рм2,5 ребенок коврик сменная anti-fog защитный чехол хлопок безопасности anti-dust пыльца маска pad нет w64h tcpt

mask factory replaceable anti-fog protective cotton safety anti-pollen dust mask pad no w64h tcpt.1.the first layer: high efficient filter cloth filter the dust of micron.2.the second layer: meltblown cloth to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies.3.the third layer: high efficient filter cloth filter benzene and a smaller function of filtering dust microns.4.the fourth layer: activated carbon cloth filter density, sma.